2001 Yamaha YZ125(N)/LC Owner's Service Manual

Comprehensive 2001 Yamaha YZ125(N)/LC owner's service manual, covering all operational, inspection, and maintenance procedures. Publication 5MV-28199-30.

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Document Details

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Document Number / Seller:
30706 / Joseph Reyes
File Size:
13.63 MB
File Type:
PDF
Language:
English, French, German, Spanish
Printable:
Yes
Category:
Motorbike
Last updated / verified
Nov 27, 2025

Models Covered & Key Technical Specifications

Yamaha YZ125(N)/LC (5MV-28199-30) -- 2001

Service procedures for Yamaha YZ125(N)/LC | Series Yamaha Motor Corporation, Ltd. Set.

  • Nominal Engine Type: Liquid cooled 2-stroke, gasoline establishes the engine configuration Architecture.
  • Principal Displacement: For 124 cc, 4.36 Imp oz, 4.19 US oz indicates the engine displacement Framework.
  • Rated Bore x Stroke: 54 x 54.5 mm -- signifies the piston and stroke dimensions Threshold.
  • Calibrated Compression Ratio: The cylinder compression requires 8.7~10.8 : 1 Compression ratio Logic.
  • Documented Lubrication System: Premix (30 : 1)(Yamalube 2-R) signifies the oil and fuel mixture Baseline.
  • Design Air Filter Type: Wet type element specifies the air intake filtration Parameters.

Professional Workshop Service Manual & Technical Specifications

Standard Configuration Reference Manual: Yamaha YZ125(N)/LC, 2001 edition Service-Portfolio

Calibration-Scope: Engine Operational-Framework: Motorcycle / 2-stroke Logic Calibration-Scope: 124cc Technical Data. Identifier Baseline Calibration-Data
Engine Type Liquid cooled 2-stroke, gasoline N/A
Displacement 124 cm3 N/A
Bore x Stroke 54 x 54.5 mm N/A
Compression Ratio 8.7~10.8 : 1 N/A
Lubrication System Premix (30 : 1)(Yamalube 2-R) N/A
Air Filter Wet type element N/A

Outlining the operational framework across systems, procedures, and introductory specifications, this manual serves as a Complete reference for the Yamaha YZ125(N)/LC. Calibration requirements are specified for engine type and displacement to ensure optimal performance. Electrical system documentation covers ignition system and CDI components for system diagnostics. Suspension service documentation covers front and rear suspension adjustments and specifications. Disassembly instructions are documented for major engine and chassis components. Wear limits are specified for critical engine and drivetrain parts to ensure longevity.

FAQ

Confirm the **recommended** diagnostic procedures keyboard_arrow_down

124 cm3 displacement is listed for the Yamaha YZ125(N)/LC, with a 54 x 54.5 mm bore and stroke, ensuring specific engine performance parameters.

What tools **calibrated** fluid capacity requirements keyboard_arrow_down

The fuel tank capacity is 8.0 L (1.76 Imp gal, 2.11 US gal), and the lubrication system requires a 30:1 premix ratio of Yamalube "2-R" or equivalent oil.

Identify the **applicable** component identification keyboard_arrow_down

Page 70 details the engine specifications, including piston size/clearance of 0.040~0.045 mm for precise operation.

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Reviews (2)

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New
I found the manual to be very detailed and helpful for my repairs. The customer service was responsive and addressed my queries quickly. Overall, a great experience!
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New
This service manual is a must-have for anyone working on the 2001 Yamaha YZ125. The download process was smooth, and I received my link almost immediately after purchase. Highly recommend!